Alien: Francis Bacon vs Alien vs Eraserhead vs Shivers

Back
in the 1940s, the famous British artist
Francis Bacon had created the paintings Head 1 and 2 (1947-1948) that
showed a strange toothy mouth emerging from a humanoid head and in
painting number 2 definitely looks as if the teeth have a definite small
skull of it's own. He was someone whose work that inspired Ridley
Scott, HR Giger,
and David Lynch, and Giger own contributions to the Chestburster's
designs echoed the idea of these paintings (especially the Head one).
Cronenberg appreciated the works of Bacon and would find comparisons
being made between their work to be legitimate.

b) Giger recalled the painting
Giger admitted that Francis Bacon's work gave him the inspiration for how the chestburster would come tearing out of the man's flesh with its gaping mouth, grasping and with and explosion of teeth and here we come back to Francis Bacon's Head 1 and 2

HR Giger “It was Francis Bacon’s work that gave me the inspiration. Of how
this thing would come tearing out of the man’s flesh with its gaping mouth,
grasping and with an explosion of teeth … it’s pure Bacon.” (http://www.latimes.com/)

MARTIN SCORSESE“A
vision that is genuinely original ... Cronenberg’s best movies still
have the capacity to cause a Jungian culture shock. They’re like Buñuel,
or Francis Bacon: wit and trauma, savagery and pity.”(Dossier 21: David Cronenberg” BFI)